109797461449 has 27 divisors (see below), whose sum is σ = 120928089639. Its totient is φ = 99645677040.

The previous prime is 109797461437. The next prime is 109797461453. The reversal of 109797461449 is 944164797901.

The square root of 109797461449 is 331357.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 16242228025 + 93555233424 = 127445^2 + 305868^2 .

It is not a de Polignac number, because 109797461449 - 2⁹ = 109797460937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109797461419) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 305842332 + ... + 305842690.

Almost surely, 2^109797461449 is an apocalyptic number.

109797461449 is the 331357-th square number.

109797461449 is the 165679-th centered octagonal number.

It is an amenable number.

109797461449 is a deficient number, since it is larger than the sum of its proper divisors (11130628190).

109797461449 is an frugal number, since it uses more digits than its factorization.

109797461449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 886 (or 443 counting only the distinct ones).

The product of its (nonzero) digits is 13716864, while the sum is 61.

The spelling of 109797461449 in words is "one hundred nine billion, seven hundred ninety-seven million, four hundred sixty-one thousand, four hundred forty-nine".